Sweden has millions of species observations and almost none of them record where somebody looked and found nothing. That absence shapes what any model can honestly claim.
Finland has tracked its berry crop since the 1990s. Sweden ran a forecast for twelve seasons, then the funding went and nothing replaced it. What was lost, and what it took to build.
Chanterelle is fussy about soil, light and company in ways that are legible in the terrain — which is why a hillside can tell you where to look.
Four to nine days after a good thunderstorm. Nearly every forager has heard it. Here is what could actually be behind it, and what the lightning data lets you check.
A folk rule with a long history, a plausible-sounding mechanism, and thin evidence. Worth understanding properly rather than dismissing or believing.
Weeks of accumulated moisture decide whether a flush happens at all. Days of warmth and damp decide whether they are up right now. Conflating them is why most forecasts miss.
Aspect changes how much sun reaches the ground, which changes how long the litter stays damp. It is the single biggest reason two hillsides in the same weather fruit a week apart.